<html>
<body>
<script src="https://cdn.jsdelivr.net/npm/vue"></script>
<div id="app-2">
    <span v-bind:title="message">
      鼠标悬停几秒钟查看此处动态绑定的提示信息！
    </span>
</div>
<script>
var app2 = new Vue({
  el: '#app-2',
  data: {
    message: '页面加载于 ' + new Date().toLocaleString()
  }
})
</script>
</body>
</html>